Relay mounting



W. F. CASSEDY JR RELAY MOUNTlNG Filed May 9, 1931 INVENTOR WILLIAM F. CASSEDY JR ATTORNE-Y Rm may? FIG. 3

Dec. 26, 1933.

fiimfi Patented Dec.

especially to the mannerin which the -relay m l al iiensa e 1 te minals-inf; a sub-base p which the relay is positioned.

" The object of my invention is the design of a sub-base and.v terminals to insure positive engagement between. the relay terminals and the sub-base terminals; The sub-base is so designed e that it may be mounted on a desk or table without the necessity of gouging out the desk for effecting connections with wires or cables. 7 Holes may be bored in the table of suflicient size to admit the necessary wires or cable, and connec- -tions from theseare made to one end of the clips ""or terminals located at the top of the sub-base.

These terminals are U shaped and the opposite ends are so shaped and mounted to form a flexible spring-jack connection with the terminals t -of the relay. l

The terminals for the-sub-base are mounted on an insulating support which is provided with slots in which the terminals fit.

The spring-jack portion of the terminals rest .-.,under tension onflanges at both sides of the,

"slots and the relay terminals enter the slots and engage the spring-jack portion of the sub-base terminals to form a positive connection therewith. That portion ofthe relayterminal which engages the sub-base terminal does not rub over any portion of the insulating support but only rubs over the spring-jack portion of the sub-base terminal and so avoids accumulating any insulating material through friction;

Other features of my invention will be pointed out in the description to follow: g

' My invention is illustrated in the accompanying drawing wherein: e Y

Fig. 1 shows a. top view of thesub-base; Fig. 2 shows a sectional view ofFig; 1 on the line 31-31; e

Fig. 3' shows a bottom view of Fig. 1; V v Fig. 4'shows a bottom view of the relay mount- Fig. 5 shows a side view of Fig. 4; I Fig. 6 shows a top view of a portionof theinsulator for supporting the sub-base terminals;

' Fig. 7 shows a side view of Fig. 6.

Referring'to Figs. 1, 2 and 3, the sub-base 1 -5o made of any suitable material, but preferably of metal, contains the mountingfor the terminals and supports the relay in proper relation to the terminals. r 1

The terminals, as shown" in. Fig.2, are U shaped- One end of eachfterminal is bent angu- ,940,344 1. 1 1;?1seminal?! I; 'Williarn F. oasseay; J12," iu u v to I-nter'nati'onal.CominuiiicationsLaboratories r aI-ncJ, LNeypYork; Y.,' aificorporation :01? New hl ly inte tion el slttb felrim mtin S and;

bar 16.

locking the relay to the sub-base. V

s shown at 21 larlyat i and the opposite end 3 i L cez ri h anelesztqih bod .ortiq -7. 32 r w Qfrth sef t r s" haweaaa eare meu i eeeunmttine. strips of insulating material 5.

The slots 6 on'one side of vided with the shoulders or'flanges 18 upon which the spring-jack portion of the U shaped. terminals rest. The other portion of the terminals provided with the off-set parts 3 rest in the slots the strip are pro- 17. These slots 17 and slots 6 with the flanges V 18 are clearly shown in Figs. 2,6. and 7. A center-insulatingistrip or bar 16 with the bevelled center bar 16 is provided with the two end projections 15 which engages slots in the sub-base land held therein by meansfof the screws 14.

Figs. 1 and 2 show clearly the positions of the 5 U shaped terminals when assembled. It will be noted that both ends 3 and 4 of the terminals are located at the top of the sub-base 1 and that so I the bottom of the sub-base is practically open and fiat so it mayrest upon the surface of a desk or table. The wires or cable may be passed through the surface of the desk and to the upper portion of the sub-base for connection with theterminal ends 3. y I Fig. 2 shows a thin sheet of insulating material; 19 which isplaced between the plates 8 and the terminals and which overlaps thebottom of the terminal support. This strip is not shown in Fig. 3 as it would serve to hide the bottom portions of the terminals and the. center The sub-base 2 and the four springs 11 for positioning and A relay mounting .or support provided with two rowsqof' terminals 24 which co-operate with the two rows of sub-base tem1inals. The four studs 22 are provided with the recessed portions 25 for engagement with the,

springs 11' of the sub-base 1.

The details of the relay'are not shown or described as a relay of this type is shown'in U. S.

Patent'No. 1,579,887 to E. J. Pratt, granted April In order to fit the relay base 21 to the subbase 1'. the two large studs 22 are placed in posi tion over the two large openings 2 of the subr base and thetwo small studs 22 are placed in position over the two small openings 2- after 1 is provided with the four holes which the relay is pressed downward so the por- V tions 25 of studs 22 engage the springs 11. The

with the inclined portions 4 of the U shaped subbase terminals. As clearly shown in Fig. 2 the terminals at portions 4 normally rest under tension against the shoulders 18.

When the relay is pressed downward the terminals 24 enter the slots or openings 6 and force the terminal ends 4 inward. toward the center of the mounting and away from the shoulders 18. v

From the foregoing descriptionit will be noted that the sub-base may be mounted on a table or anyflat surface through which the necessary conductors pass and the connections made to the terminals at 3 which are located at the top of the sub-base where they are readily accessible.

It will be noted that the latch spring 10 is not permanently attached to its sub-base, but is clamped thereto as shown in Fig. 2.

Likewise the springs '11 are not permanently attached to the sub-base, but are provided with a flange 31 which fits snugly into the channel 32.

What is claimed is:

A device comprising a relay mounting and terminals therefor, a sub-base provided with U- shaped terminals each having reduced body portions and an. enlarged end portion, an insulating support having a slot for each body portion of said terminals and a flange for the enlarged end portion, each of said U-shaped terminals being under tension to hold the body portion in the slot and the enlarged portion against said flange,

. means to position said relay mounting with said sub-base so its terminals will enter said slots and engage said enlarged ends of said U-shaped terminals;

F WILLIAM F; CASSEDY, JR. 

